[Deploy, Issue and Transfer Tokens] 本例使用 eosio.token 合约来尝试发行Token. 1.签出 eosio.contracts. git clone https://github.com/EOSIO/eosio.contracts --branch v1.4.0 --single-branch 这里头有很多eosio写的标准合约. 我们将使用上图中的 eosio.token 合约来练习发布 token. 2.eosio.token非常的简单,仅包含…

http://bitoftech.net/2015/02/16/implement-oauth-json-web-tokens-authentication-in-asp-net-web-api-and-identity-2/ Currently our API doesn’t support authentication and authorization, all the requests we receive to any end point are done anonymously, I…

前言 目前区块链是互联网中最最火的风口,没有之一.我周围的很多朋友也加入了“炒币”行列,但很不幸,几乎都被“割韭菜”了.而经过我的几天研究,发现,如果自己要发行一种空气币,简直太简单了.只需要下面几个步骤: 1.使用MetaMask 2.找Solidity代码模板 3.部署智能合约 4.空气币转账测试 一.MetaMask 在Chrome浏览器的网上应用店搜索MetaMask,如下图所示,如果搜到小狐狸logo的插件就对了,这就是以太坊浏览器(如果有无法打开Chrome网上应用店的朋友,就去搜索…

NEO常见的资产有三种 TOKEN (全局资产) Share (全局资产,股份 ) NEP-5 (合约代币,相当于ETH的ERC20) NEP-5 合约代码 https://github.com/ANDIT-Solutions/NEO-NEP5.1 这里发行Name为Five的代币,代币Symbol为FFF. 共发行1000000000个单位. using Neo.SmartContract.Framework; using Neo.SmartContract.Framework.Service…

技术背景 虽然现在苹果占据了很大一部分的市场,但是从销量数据来看,安卓还是占据了人口的高地.这里我们介绍一个用python的kivy+buildozer来进行安卓APP开发的简单教程,从整个过程中来看,环境部署这一块所需的工作量是非常大的,可能这就是从0到1的困难?文末我们会总结出,哪一种方案是最容易的,希望能够对大家有所帮助. kivy的安装 官方推荐的方式是使用虚拟环境来进行安装和部署,关于虚拟环境的相关操作,在前面写过的一篇博客中有稍微详细一点的介绍,这里我们先给出操作步骤.假定我们已经在…

327.You have a database with the following tablespaces: SYSTEM, SYSAUX, UNDO, USERS, TEMP.You want to"roll back" the data in the USERS tablespace to the way it looked yesterday. Whichtablespaces do you need to perform a point-in-time restore ope…

1.安装 METAMASK Brings Ethereum to your browser 一个可以浏览器上进行操作的以太坊钱包,推荐 Chrome. Chrome 插件安装地址: https://chrome.google.com/webstore/detail/metamask/nkbihfbeogaeaoehlefnkodbefgpgknn​chrome.google.com 2.在 METAMASK 创建钱包 3.从以太坊官网复制代币代码模板 Create a cryptocurrenc…

本文主要研究EOS的tps表现,会从插件.cleos.EOSBenchTool以及eosjs四种方式进行分析研究. 关键字:eos, tps, cleos, txn_test_gen_plugin, EOSBenchTool, qt, eosjs, C++源码分析 身心准备 tps: Transaction per Second. 每秒事务处理量 链环境部署使用Python3脚本 bios-boot-tutorial,使用方法请参考boot-sequence脚本 测试机器的硬件配置:双核cpu…

https://github.com/PhABC/EIPs/blob/is-valid-signature/EIPS/eip-1271.md Standard Signature Validation Method for Contracts eip title author discussions-to status type category created 1271 Standard Signature Validation Method for Contracts Francisco G…

以太坊发币智能合约代码简单介绍: 发币代码如下(https://ethereum.org/token#the-code网站中获得): pragma solidity ^; interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; } contract TokenERC20 { // Public varia…

http://cryto.net/~joepie91/blog/2016/06/13/stop-using-jwt-for-sessions/ At the start of this article, I said that there are good usecases for JWT, but that they're just not suitable as a session mechanism. This still holds true; the usecases where JW…

为了帮助大家熟悉 EOS 智能合约,EOS 官方提供了一个代币(资产)智能合约 Demo -- eosio.token.eosio.token 智能合约目前还不是特别完善,个别功能还没有完成.但这个示例合约给出了 EOS 官方智能合约开发的标准结构和开发方法,并且真正的 EOS 代币也会借鉴这个示例合约的逻辑,是 EOS 智能合约入门的经典案例. 照例,eosio.token 合约由三个文件(cpp,hpp,abi)文件组成,本篇文章将为大家讲解 eosio.token.hpp 文件.原文件地址…

BAPI_GOODSMVT_CREATE 使用方法 * GMCODE Table T158G - - MB01 - Goods Receipts for Purchase Order * - MB31 - Goods Receipts for Prod Order * - MB1A - Goods Issue * - MB1B - Transfer Posting * - MB1C - Enter Other Goods Receipt * - MB11 * * Domain: KZBEW -…

原文地址:http://www.svlada.com/jwt-token-authentication-with-spring-boot/ Table of contents: Introduction PRE-requisites Ajax authentication JWT Authentication Introduction This article will guide you on how you can implement JWT authentication with Spri…

前言: 本文介绍在 Ubuntu 18.04 中安装 Fabric, 并对 官方文档中的一个小案例(Using the Fabric test network)进行测试. 目的: 初步了解 Fabric 网络的执行步骤,调用,以及通过阅读样例链码,了解如何写链码 作为初学者,文中描述可能有不当,希望看到的人能够及时指出,大家一起学习. 1.首先确保环境安装好 安装 go https://www.cnblogs.com/faddei/p/13512691.html 安装 docker https:…

学习核心合约UniswapV2Pair,在父合约UniswapV2ERC20的基础上增加资产交易及流动性提供等功能. 交易对合约本身是erc20合约,代币表示流动性,代币在提供流动性的地址里,当提供流动性,就会增发代币给提供者,反正提取流动性,就烧掉提取者的代币 1 pragma solidity =0.5.16; 2 3 import './interfaces/IUniswapV2Pair.sol'; 4 import './UniswapV2ERC20.sol'; 5 import './…

我在部署构件至 maven nexus 私服时,有时会出现 Failed to deploy artifacts: Failed to transfer file: ... Return code is: 4XX, ReasonPhrase: ... 类似这样的错误,那么这些错误是怎么产生,又如何解决呢?我在此将自己在部署过程中遇到的错误整理汇总一下,供大家参阅,希望对大家有所帮助. 一.错误的请求.Return code is: 400, ReasonPhrase: Bad Request.…

QA: Failed to deploy artifacts from/to snapshots XX Failed to transfer file Return code is: 405, ReasonPhrase:Method Not Allowed. Solution: maven目录conf的setting.xml里, <server> <id>releases</id> <username>admin</username> <p…

Android Weekly Issue #220 August 28th, 2016 Android Weekly Issue #220 ARTICLES & TUTORIALS Manage dependencies versions with gradle extra properties 依赖管理的小Tip: 把依赖的版本号作为变量管理. 改造之后, build.gradle文件变成这样: apply plugin: 'com.android.application' android {…

A. Using LCS services. B. Manual using command prompt. Here I’ll show using command prompt, as I found its better than LCS (After successfully deploy many packages J) Follow below steps, 1. Create Deployment Package: Run VS as admin, Go to Dynamics A…

BizTalkDeploymentTools.AddResource.bat @Echo OFF SET ApplicationName=%~1 SET ComponentType=%~2 SET ComponentName=%~3 Echo. Echo. Echo ################################################################## Echo. Echo. Deploying the fllowing Assembly... Ec…

There are four data transfer types defined in USB(USB中有4种数据传输类型). Each type is optimized to match the service requirements between the client software and the USB device. The four types are: Interrupt Transfers(中断传输) - Small data transfers used to co…

At this moment, Azure Service Fabric does not support JAVA application natively (but it's on the support roadmap). However, we can host the JAVA application as a Guest Executable for the time being. In this article, I will walk you through how to dep…

I have a RPi which I intented to use it to crawl data. The development environment in RPi is very bad, so I did my programing in PC. This lead to an issue that I need to transfer the distribution from my PC to RPi. I does not want to use thumbdrive a…

If your developing a new Windows 8 app and you want to test it on another device (e.g. Surface), you’ll need to use a technique called sideloading. This can easily be done through a few steps that I’ll describe in this post. What is Sideloading? Wind…

在对nutch源代码运行ant runtime后,会创建一个runtime的目录,在runtime目录下有deploy和local 2个目录. [jediael@jediael runtime]$ ls deploy  local 这2个目录分别代表nutch的2种运行方式:部署模式及本地模式. 1.nutch.sh中关于2种运行方式的执行 if $local; then # fix for the external Xerces lib issue with SAXParserFactory…

Planning real world REST API http://blog.developers.ba/post/2012/03/03/ASPNET-Web-API-Authorization-using-Tokens.aspx When you try to plan how to build real world REST API like other major players like Facebook or Foursquare have you will soon realiz…

本文转自: http://webmodelling.com/webbits/aspnet/aspnet-deploy-iis.aspx 15 Sep 2016. This tutorial will show step by step how to deploy an ASP.NET Core 1 project to Internet Information Server (IIS) on a Windows 2012 R2 production server. ASP.NET Core 1…

Android Weekly Issue #250 March 26th, 2017 Android Weekly Issue #250. 本期内容: 好几篇关于Android O预览版的文章; JUnit 5的动态测试; 作为团队里唯一的Android开发如何学习和工作; Support库新推出的基于物理的动画API: SpringAnimation; Uber Rider项目重构中关于依赖注入的scope层级的改动; Kotlin和RxJava的简洁性. ARTICLES & TUTORIA…

November 26th, 2017 Android Weekly Issue #285 本周包含好几篇Kotlin的文章,如通过Property Delegate实现SharedPreference的自动读写,Coroutines编写Weather应用的终结篇,还有关于如何写好代码的方法论的Tips,以及MVI的全面介绍,如果不喜欢Mosby的approach,可能这个作者从头到尾实现的更有看头. 当然如果想了解Android最流行的pipeline如何开发,可以去看一篇关于Devops的文…